RFC Abstracts
RFC4639 - Cable Device Management Information Base for Data-Over-Cable Service Interface Specification (DOCSIS) Compliant Cable Modems and Cable Modem Termination Systems
This memo defines a portion of the Management Information Base (MIB) for use with network management protocols in the Internet community. In particular, it defines a basic set of managed objects for Simple Network Management Protocol (SNMP)-based management of Data Over Cable Service Interface Specification (DOCSIS)-compliant Cable Modems and Cable Modem Termination Systems.
RFC4638 - Accommodating a Maximum Transit Unit/Maximum Receive Unit (MTU/MRU) Greater Than 1492 in the Point-to-Point Protocol over Ethernet (PPPoE)
The Point-to-Point Protocol over Ethernet (PPPoE), as described in RFC 2516, mandates a maximum negotiated Maximum Receive Unit (MRU) of 1492. This document outlines a solution that relaxes this restriction and allows a maximum negotiated MRU greater than 1492 to minimize fragmentation in next-generation broadband networks. This memo provides information for the Internet community.
RFC4636 - Foreign Agent Error Extension for Mobile IPv4
This document specifies a new extension for use by Foreign Agents operating Mobile IP for IPv4. Currently, a foreign agent cannot supply status information without destroying the ability for a mobile node to verify authentication data supplied by the home agent. The new extension solves this problem by making a better place for the foreign agent to provide its status information to the mobile node. [STANDARDS-TRACK]
RFC4635 - HMAC SHA (Hashed Message Authentication Code, Secure Hash Algorithm) TSIG Algorithm Identifiers
Use of the Domain Name System TSIG resource record requires specification of a cryptographic message authentication code. Currently, identifiers have been specified only for HMAC MD5 (Hashed Message Authentication Code, Message Digest 5) and GSS (Generic Security Service) TSIG algorithms. This document standardizes identifiers and implementation requirements for additional HMAC SHA (Secure Hash Algorithm) TSIG algorithms and standardizes how to specify and handle the truncation of HMAC values in TSIG. [STANDARDS-TRACK]
RFC4634 - US Secure Hash Algorithms (SHA and HMAC-SHA)
The United States of America has adopted a suite of Secure Hash Algorithms (SHAs), including four beyond SHA-1, as part of a Federal Information Processing Standard (FIPS), specifically SHA-224 (RFC 3874), SHA-256, SHA-384, and SHA-512. The purpose of this document is to make source code performing these hash functions conveniently available to the Internet community. The sample code supports input strings of arbitrary bit length. SHA-1's sample code from RFC 3174 has also been updated to handle input strings of arbitrary bit length. Most of the text herein was adapted by the authors from FIPS 180-2.
RFC4633 - Experiment in Long-Term Suspensions From Internet Engineering Task Force (IETF) Mailing Lists
Discussion in the community has begun to question whether RFC 3683 and RFC 3934 provide the appropriate flexibility for managing Internet Engineering Task Force (IETF) mailing lists. This document is an RFC 3933 experiment designed to allow the community to experiment with a broader set of tools for mailing list management while trying to determine what the long-term guidelines should be. This memo defines an Experimental Protocol for the Internet community.
RFC4632 - Classless Inter-domain Routing (CIDR): The Internet Address Assignment and Aggregation Plan
This memo discusses the strategy for address assignment of the existing 32-bit IPv4 address space with a view toward conserving the address space and limiting the growth rate of global routing state. This document obsoletes the original Classless Inter-domain Routing (CIDR) spec in RFC 1519, with changes made both to clarify the concepts it introduced and, after more than twelve years, to update the Internet community on the results of deploying the technology described. This document specifies an Internet Best Current Practices for the Internet Community, and requests discussion and suggestions for improvements.
RFC4631 - Link Management Protocol (LMP) Management Information Base (MIB)
This document provides minor corrections to and obsoletes RFC 4327.
RFC4630 - Update to DirectoryString Processing in the Internet X.509 Public Key Infrastructure Certificate and Certificate Revocation List (CRL) Profile
This document updates the handling of DirectoryString in the Internet X.509 Public Key Infrastructure Certificate and Certificate Revocation List (CRL) Profile, which is published in RFC 3280. The use of UTF8String and PrintableString are the preferred encoding. The requirement for exclusive use of UTF8String after December 31, 2003 is removed. [STANDARDS-TRACK]
RFC4629 - RTP Payload Format for ITU-T Rec. H.263 Video
This document describes a scheme to packetize an H.263 video stream for transport using the Real-time Transport Protocol (RTP) with any of the underlying protocols that carry RTP.
RFC4628 - RTP Payload Format for H.263 Moving RFC 2190 to Historic Status
The first RFC that describes RTP payload format for ITU Telecommunication Standardization Sector (ITU-T) recommendation H.263 is RFC 2190. This specification discusses why to move RFC 2190 to historic status. This memo provides information for the Internet community.
RFC4627 - The application/json Media Type for JavaScript Object Notation (JSON)
JavaScript Object Notation (JSON) is a lightweight, text-based, language-independent data interchange format. It was derived from the ECMAScript Programming Language Standard. JSON defines a small set of formatting rules for the portable representation of structured data. This memo provides information for the Internet community.
RFC4626 - MIB for Fibre Channel's Fabric Shortest Path First (FSPF) Protocol
This memo defines a portion of the Management Information Base (MIB) for use with network management protocols in the Internet community. In particular, it describes managed objects for information related to the Fibre Channel network's Fabric Shortest Path First (FSPF) routing protocol. [STANDARDS-TRACK]
RFC4625 - Fibre Channel Routing Information MIB
This memo defines a portion of the Management Information Base (MIB) for use with network management protocols in the Internet community. In particular, it describes managed objects for information related to routing within a Fibre Channel fabric, which is independent of the usage of a particular routing protocol. [STANDARDS-TRACK]
RFC4624 - Multicast Source Discovery Protocol (MSDP) MIB
This memo defines an experimental portion of the Management Information Base (MIB) for use with network management protocols in the Internet community. In particular, it describes managed objects used for managing Multicast Source Discovery Protocol (MSDP) (RFC 3618) speakers. This memo defines an Experimental Protocol for the Internet community.
RFC4623 - Pseudowire Emulation Edge-to-Edge (PWE3) Fragmentation and Reassembly
This document defines a generalized method of performing fragmentation for use by Pseudowire Emulation Edge-to-Edge (PWE3) protocols and services. [STANDARDS-TRACK]
RFC4622 - Internationalized Resource Identifiers (IRIs) and Uniform Resource Identifiers (URIs) for the Extensible Messaging and Presence Protocol (XMPP)
This document defines the use of Internationalized Resource Identifiers (IRIs) and Uniform Resource Identifiers (URIs) in identifying or interacting with entities that can communicate via the Extensible Messaging and Presence Protocol (XMPP). [STANDARDS-TRACK]
RFC4621 - Design of the IKEv2 Mobility and Multihoming (MOBIKE) Protocol
The IKEv2 Mobility and Multihoming (MOBIKE) protocol is an extension of the Internet Key Exchange Protocol version 2 (IKEv2). These extensions should enable an efficient management of IKE and IPsec Security Associations when a host possesses multiple IP addresses and/or where IP addresses of an IPsec host change over time (for example, due to mobility).
RFC4620 - IPv6 Node Information Queries
This document describes a protocol for asking an IPv6 node to supply certain network information, such as its hostname or fully-qualified domain name. IPv6 implementation experience has shown that direct queries for a hostname are useful, and a direct query mechanism for other information has been found useful in serverless environments and for debugging. This memo defines an Experimental Protocol for the Internet community.
RFC4619 - Encapsulation Methods for Transport of Frame Relay over Multiprotocol Label Switching (MPLS) Networks
A frame relay pseudowire is a mechanism that exists between a provider's edge network nodes and that supports as faithfully as possible frame relay services over an MPLS packet switched network (PSN). This document describes the detailed encapsulation necessary to transport frame relay packets over an MPLS network. [STANDARDS-TRACK]
RFC4618 - Encapsulation Methods for Transport of PPP/High-Level Data Link Control (HDLC) over MPLS Networks
A pseudowire (PW) can be used to carry Point to Point Protocol (PPP) or High-Level Data Link Control (HDLC) Protocol Data Units over a Multiprotocol Label Switching (MPLS) network without terminating the PPP/HDLC protocol. This enables service providers to offer "emulated" HDLC, or PPP link services over existing MPLS networks. This document specifies the encapsulation of PPP/HDLC Packet Data Units (PDUs) within a pseudowire. [STANDARDS-TRACK]
RFC4617 - A Uniform Resource Name (URN) Formal Namespace for the Latvian National Government Integration Project
This document describes a Uniform Resource Name (URN) namespace that is engineered by a consortium (general contractor, Olimps LTD, and subcontractors, ABC software LTD, Microsoft Latvia LTD, Riga Internet eXchange (RIX) Technologies LTD, and Microlink LTD) for naming information resources published and produced by the Latvian National Government Integration Project (Latvian abbreviation IVIS). This memo provides information for the Internet community.
RFC4616 - The PLAIN Simple Authentication and Security Layer (SASL) Mechanism
This document defines a simple clear-text user/password Simple Authentication and Security Layer (SASL) mechanism called the PLAIN mechanism. The PLAIN mechanism is intended to be used, in combination with data confidentiality services provided by a lower layer, in protocols that lack a simple password authentication command. [STANDARDS-TRACK]
RFC4615 - The Advanced Encryption Standard-Cipher-based Message Authentication Code-Pseudo-Random Function-128 (AES-CMAC-PRF-128) Algorithm for the Internet Key Exchange Protocol (IKE)
Some implementations of IP Security (IPsec) may want to use a pseudo-random function (PRF) based on the Advanced Encryption Standard (AES). This memo describes such an algorithm, called AES-CMAC-PRF-128. It supports fixed and variable key sizes. [STANDARDS-TRACK]
RFC4614 - A Roadmap for Transmission Control Protocol (TCP) Specification Documents
This document contains a "roadmap" to the Requests for Comments (RFC) documents relating to the Internet's Transmission Control Protocol (TCP). This roadmap provides a brief summary of the documents defining TCP and various TCP extensions that have accumulated in the RFC series. This serves as a guide and quick reference for both TCP implementers and other parties who desire information contained in the TCP-related RFCs. This memo provides information for the Internet community.
RFC4613 - Media Type Registrations for Downloadable Sounds for Musical Instrument Digital Interface (MIDI)
This document serves to register a media type for Downloadable Sounds. This memo provides information for the Internet community.
RFC4612 - Real-Time Facsimile (T.38) - audio/t38 MIME Sub-type Registration
This document defines the MIME sub-type audio/t38. The usage of this MIME type, which is intended for use within Session Description Protocol (SDP), is specified within ITU-T Recommendation T.38. This memo defines a Historic Document for the Internet community.
RFC4611 - Multicast Source Discovery Protocol (MSDP) Deployment Scenarios
This document describes best current practices for intra-domain and inter-domain deployment of the Multicast Source Discovery Protocol (MSDP) in conjunction with Protocol Independent Multicast Sparse Mode (PIM-SM). This document specifies an Internet Best Current Practices for the Internet Community, and requests discussion and suggestions for improvements.
RFC4610 - Anycast-RP Using Protocol Independent Multicast (PIM)
This specification allows Anycast-RP (Rendezvous Point) to be used inside a domain that runs Protocol Independent Multicast (PIM) only. Other multicast protocols (such as Multicast Source Discovery Protocol (MSDP), which has been used traditionally to solve this problem) are not required to support Anycast-RP. [STANDARDS-TRACK]
RFC4609 - Protocol Independent Multicast - Sparse Mode (PIM-SM) Multicast Routing Security Issues and Enhancements
This memo describes security threats for the larger (intra-domain or inter-domain) multicast routing infrastructures. Only Protocol Independent Multicast - Sparse Mode (PIM-SM) is analyzed, in its three main operational modes: the traditional Any-Source Multicast (ASM) model, the source-specific multicast (SSM) model, and the ASM model enhanced by the Embedded Rendezvous Point (Embedded-RP) group-to-RP mapping mechanism. This memo also describes enhancements to the protocol operations that mitigate the identified threats. This memo provides information for the Internet community.
RFC4608 - Source-Specific Protocol Independent Multicast in 232/8
IP Multicast group addresses in the 232/8 (232.0.0.0 to 232.255.255.255) range are designated as source-specific multicast destination addresses and are reserved for use by source-specific multicast applications and protocols. This document defines operational recommendations to ensure source-specific behavior within the 232/8 range. This document specifies an Internet Best Current Practices for the Internet Community, and requests discussion and suggestions for improvements.
RFC4607 - Source-Specific Multicast for IP
IP version 4 (IPv4) addresses in the 232/8 (232.0.0.0 to 232.255.255.255) range are designated as source-specific multicast (SSM) destination addresses and are reserved for use by source-specific applications and protocols. For IP version 6 (IPv6), the address prefix FF3x::/32 is reserved for source-specific multicast use. This document defines an extension to the Internet network service that applies to datagrams sent to SSM addresses and defines the host and router requirements to support this extension. [STANDARDS-TRACK]
RFC4606 - Generalized Multi-Protocol Label Switching (GMPLS) Extensions for Synchronous Optical Network (SONET) and Synchronous Digital Hierarchy (SDH) Control
This document provides minor clarification to RFC 3946.
RFC4605 - Internet Group Management Protocol (IGMP) / Multicast Listener Discovery (MLD)-Based Multicast Forwarding ("IGMP/MLD Proxying")
In certain topologies, it is not necessary to run a multicast routing protocol. It is sufficient for a device to learn and proxy group membership information and simply forward multicast packets based upon that information. This document describes a mechanism for forwarding based solely upon Internet Group Management Protocol (IGMP) or Multicast Listener Discovery (MLD) membership information. [STANDARDS-TRACK]
RFC4604 - Using Internet Group Management Protocol Version 3 (IGMPv3) and Multicast Listener Discovery Protocol Version 2 (MLDv2) for Source-Specific Multicast
The Internet Group Management Protocol Version 3 (IGMPv3) and the Multicast Listener Discovery Protocol Version 2 (MLDv2) are protocols that allow a host to inform its neighboring routers of its desire to receive IPv4 and IPv6 multicast transmissions, respectively. Source-specific multicast (SSM) is a form of multicast in which a receiver is required to specify both the network-layer address of the source and the multicast destination address in order to receive the multicast transmission. This document defines the notion of an "SSM-aware" router and host, and clarifies and (in some cases) modifies the behavior of IGMPv3 and MLDv2 on SSM-aware routers and hosts to accommodate source-specific multicast. This document updates the IGMPv3 and MLDv2 specifications. [STANDARDS-TRACK]
RFC4603 - Additional Values for the NAS-Port-Type Attribute
This document defines a set of values for the NAS-Port-Type RADIUS Attribute. This memo provides information for the Internet community.
RFC4602 - Protocol Independent Multicast - Sparse Mode (PIM-SM) IETF Proposed Standard Requirements Analysis
This document provides supporting documentation to advance the Protocol Independent Multicast - Sparse Mode (PIM-SM) routing protocol from IETF Experimental status to Proposed Standard. This memo provides information for the Internet community.
RFC4601 - Protocol Independent Multicast - Sparse Mode (PIM-SM): Protocol Specification (Revised)
This document specifies Protocol Independent Multicast - Sparse Mode (PIM-SM). PIM-SM is a multicast routing protocol that can use the underlying unicast routing information base or a separate multicast-capable routing information base. It builds unidirectional shared trees rooted at a Rendezvous Point (RP) per group, and optionally creates shortest-path trees per source.
RFC4598 - Real-time Transport Protocol (RTP) Payload Format for Enhanced AC-3 (E-AC-3) Audio
This document describes a Real-time Transport Protocol (RTP) payload format for transporting Enhanced AC-3 (E-AC-3) encoded audio data. E-AC-3 is a high-quality, multichannel audio coding format and is an extension of the AC-3 audio coding format, which is used in US High-Definition Television (HDTV), DVD, cable and satellite television, and other media. E-AC-3 is an optional audio format in US and world wide digital television and high-definition DVD formats. The RTP payload format as presented in this document includes support for data fragmentation. [STANDARDS-TRACK]
RFC4597 - Conferencing Scenarios
This document describes multimedia conferencing scenarios. It describes both basic and advanced conferencing scenarios involving voice, video, text, and interactive text sessions. These scenarios will help with the definition and evaluation of the protocols being developed in the centralized conferencing XCON working group. This memo provides information for the Internet community.
RFC4596 - Guidelines for Usage of the Session Initiation Protocol (SIP) Caller Preferences Extension
This document contains guidelines for usage of the Caller Preferences Extension to the Session Initiation Protocol (SIP). It demonstrates the benefits of caller preferences with specific example applications, provides use cases to show proper operation, provides guidance on the applicability of the registered feature tags, and describes a straightforward implementation of the preference and capability matching algorithm specified in Section 7.2 of RFC 3841. This memo provides information for the Internet community.
RFC4595 - Use of IKEv2 in the Fibre Channel Security Association Management Protocol
This document describes the use of IKEv2 to negotiate security protocols and transforms for Fibre Channel as part of the Fibre Channel Security Association Management Protocol. This usage requires that IKEv2 be extended with Fibre-Channel-specific security protocols, transforms, and name types. This document specifies these IKEv2 extensions and allocates identifiers for them. Using new IKEv2 identifiers for Fibre Channel security protocols avoids any possible confusion between IKEv2 negotiation for IP networks and IKEv2 negotiation for Fibre Channel. This memo provides information for the Internet community.
RFC4594 - Configuration Guidelines for DiffServ Service Classes
This document describes service classes configured with Diffserv and recommends how they can be used and how to construct them using Differentiated Services Code Points (DSCPs), traffic conditioners, Per-Hop Behaviors (PHBs), and Active Queue Management (AQM) mechanisms. There is no intrinsic requirement that particular DSCPs, traffic conditioners, PHBs, and AQM be used for a certain service class, but as a policy and for interoperability it is useful to apply them consistently. This memo provides information for the Internet community.
RFC4593 - Generic Threats to Routing Protocols
Routing protocols are subject to attacks that can harm individual users or network operations as a whole. This document provides a description and a summary of generic threats that affect routing protocols in general. This work describes threats, including threat sources and capabilities, threat actions, and threat consequences, as well as a breakdown of routing functions that might be attacked separately. This memo provides information for the Internet community.
RFC4592 - The Role of Wildcards in the Domain Name System
This is an update to the wildcard definition of RFC 1034. The interaction with wildcards and CNAME is changed, an error condition is removed, and the words defining some concepts central to wildcards are changed. The overall goal is not to change wildcards, but to refine the definition of RFC 1034. [STANDARDS-TRACK]
RFC4591 - Frame Relay over Layer 2 Tunneling Protocol Version 3 (L2TPv3)
The Layer 2 Tunneling Protocol, Version 3, (L2TPv3) defines a protocol for tunneling a variety of data link protocols over IP networks. This document describes the specifics of how to tunnel Frame Relay over L2TPv3, including frame encapsulation, virtual-circuit creation and deletion, and status change notification. [STANDARDS-TRACK]
RFC4590 - RADIUS Extension for Digest Authentication
This document defines an extension to the Remote Authentication Dial-In User Service (RADIUS) protocol to enable support of Digest Authentication, for use with HTTP-style protocols like the Session Initiation Protocol (SIP) and HTTP. [STANDARDS-TRACK]
RFC4589 - Location Types Registry
This document creates a registry for describing the types of places a human or end system might be found. The registry is then referenced by other protocols that need a common set of location terms as protocol constants. Examples of location terms defined in this document include aircraft, office, and train station. [STANDARDS-TRACK]
RFC4588 - RTP Retransmission Payload Format
RTP retransmission is an effective packet loss recovery technique for real-time applications with relaxed delay bounds. This document describes an RTP payload format for performing retransmissions. Retransmitted RTP packets are sent in a separate stream from the original RTP stream. It is assumed that feedback from receivers to senders is available. In particular, it is assumed that Real-time Transport Control Protocol (RTCP) feedback as defined in the extended RTP profile for RTCP-based feedback (denoted RTP/AVPF) is available in this memo. [STANDARDS-TRACK]
RFC4587 - RTP Payload Format for H.261 Video Streams
This memo describes a scheme to packetize an H.261 video stream for transport using the Real-time Transport Protocol, RTP, with any of the underlying protocols that carry RTP.
This memo defines a portion of the Management Information Base (MIB) for use with network management protocols in the Internet community. In particular, it defines a basic set of managed objects for Simple Network Management Protocol (SNMP)-based management of Data Over Cable Service Interface Specification (DOCSIS)-compliant Cable Modems and Cable Modem Termination Systems.
RFC4638 - Accommodating a Maximum Transit Unit/Maximum Receive Unit (MTU/MRU) Greater Than 1492 in the Point-to-Point Protocol over Ethernet (PPPoE)
The Point-to-Point Protocol over Ethernet (PPPoE), as described in RFC 2516, mandates a maximum negotiated Maximum Receive Unit (MRU) of 1492. This document outlines a solution that relaxes this restriction and allows a maximum negotiated MRU greater than 1492 to minimize fragmentation in next-generation broadband networks. This memo provides information for the Internet community.
RFC4636 - Foreign Agent Error Extension for Mobile IPv4
This document specifies a new extension for use by Foreign Agents operating Mobile IP for IPv4. Currently, a foreign agent cannot supply status information without destroying the ability for a mobile node to verify authentication data supplied by the home agent. The new extension solves this problem by making a better place for the foreign agent to provide its status information to the mobile node. [STANDARDS-TRACK]
RFC4635 - HMAC SHA (Hashed Message Authentication Code, Secure Hash Algorithm) TSIG Algorithm Identifiers
Use of the Domain Name System TSIG resource record requires specification of a cryptographic message authentication code. Currently, identifiers have been specified only for HMAC MD5 (Hashed Message Authentication Code, Message Digest 5) and GSS (Generic Security Service) TSIG algorithms. This document standardizes identifiers and implementation requirements for additional HMAC SHA (Secure Hash Algorithm) TSIG algorithms and standardizes how to specify and handle the truncation of HMAC values in TSIG. [STANDARDS-TRACK]
RFC4634 - US Secure Hash Algorithms (SHA and HMAC-SHA)
The United States of America has adopted a suite of Secure Hash Algorithms (SHAs), including four beyond SHA-1, as part of a Federal Information Processing Standard (FIPS), specifically SHA-224 (RFC 3874), SHA-256, SHA-384, and SHA-512. The purpose of this document is to make source code performing these hash functions conveniently available to the Internet community. The sample code supports input strings of arbitrary bit length. SHA-1's sample code from RFC 3174 has also been updated to handle input strings of arbitrary bit length. Most of the text herein was adapted by the authors from FIPS 180-2.
RFC4633 - Experiment in Long-Term Suspensions From Internet Engineering Task Force (IETF) Mailing Lists
Discussion in the community has begun to question whether RFC 3683 and RFC 3934 provide the appropriate flexibility for managing Internet Engineering Task Force (IETF) mailing lists. This document is an RFC 3933 experiment designed to allow the community to experiment with a broader set of tools for mailing list management while trying to determine what the long-term guidelines should be. This memo defines an Experimental Protocol for the Internet community.
RFC4632 - Classless Inter-domain Routing (CIDR): The Internet Address Assignment and Aggregation Plan
This memo discusses the strategy for address assignment of the existing 32-bit IPv4 address space with a view toward conserving the address space and limiting the growth rate of global routing state. This document obsoletes the original Classless Inter-domain Routing (CIDR) spec in RFC 1519, with changes made both to clarify the concepts it introduced and, after more than twelve years, to update the Internet community on the results of deploying the technology described. This document specifies an Internet Best Current Practices for the Internet Community, and requests discussion and suggestions for improvements.
RFC4631 - Link Management Protocol (LMP) Management Information Base (MIB)
This document provides minor corrections to and obsoletes RFC 4327.
RFC4630 - Update to DirectoryString Processing in the Internet X.509 Public Key Infrastructure Certificate and Certificate Revocation List (CRL) Profile
This document updates the handling of DirectoryString in the Internet X.509 Public Key Infrastructure Certificate and Certificate Revocation List (CRL) Profile, which is published in RFC 3280. The use of UTF8String and PrintableString are the preferred encoding. The requirement for exclusive use of UTF8String after December 31, 2003 is removed. [STANDARDS-TRACK]
RFC4629 - RTP Payload Format for ITU-T Rec. H.263 Video
This document describes a scheme to packetize an H.263 video stream for transport using the Real-time Transport Protocol (RTP) with any of the underlying protocols that carry RTP.
RFC4628 - RTP Payload Format for H.263 Moving RFC 2190 to Historic Status
The first RFC that describes RTP payload format for ITU Telecommunication Standardization Sector (ITU-T) recommendation H.263 is RFC 2190. This specification discusses why to move RFC 2190 to historic status. This memo provides information for the Internet community.
RFC4627 - The application/json Media Type for JavaScript Object Notation (JSON)
JavaScript Object Notation (JSON) is a lightweight, text-based, language-independent data interchange format. It was derived from the ECMAScript Programming Language Standard. JSON defines a small set of formatting rules for the portable representation of structured data. This memo provides information for the Internet community.
RFC4626 - MIB for Fibre Channel's Fabric Shortest Path First (FSPF) Protocol
This memo defines a portion of the Management Information Base (MIB) for use with network management protocols in the Internet community. In particular, it describes managed objects for information related to the Fibre Channel network's Fabric Shortest Path First (FSPF) routing protocol. [STANDARDS-TRACK]
RFC4625 - Fibre Channel Routing Information MIB
This memo defines a portion of the Management Information Base (MIB) for use with network management protocols in the Internet community. In particular, it describes managed objects for information related to routing within a Fibre Channel fabric, which is independent of the usage of a particular routing protocol. [STANDARDS-TRACK]
RFC4624 - Multicast Source Discovery Protocol (MSDP) MIB
This memo defines an experimental portion of the Management Information Base (MIB) for use with network management protocols in the Internet community. In particular, it describes managed objects used for managing Multicast Source Discovery Protocol (MSDP) (RFC 3618) speakers. This memo defines an Experimental Protocol for the Internet community.
RFC4623 - Pseudowire Emulation Edge-to-Edge (PWE3) Fragmentation and Reassembly
This document defines a generalized method of performing fragmentation for use by Pseudowire Emulation Edge-to-Edge (PWE3) protocols and services. [STANDARDS-TRACK]
RFC4622 - Internationalized Resource Identifiers (IRIs) and Uniform Resource Identifiers (URIs) for the Extensible Messaging and Presence Protocol (XMPP)
This document defines the use of Internationalized Resource Identifiers (IRIs) and Uniform Resource Identifiers (URIs) in identifying or interacting with entities that can communicate via the Extensible Messaging and Presence Protocol (XMPP). [STANDARDS-TRACK]
RFC4621 - Design of the IKEv2 Mobility and Multihoming (MOBIKE) Protocol
The IKEv2 Mobility and Multihoming (MOBIKE) protocol is an extension of the Internet Key Exchange Protocol version 2 (IKEv2). These extensions should enable an efficient management of IKE and IPsec Security Associations when a host possesses multiple IP addresses and/or where IP addresses of an IPsec host change over time (for example, due to mobility).
RFC4620 - IPv6 Node Information Queries
This document describes a protocol for asking an IPv6 node to supply certain network information, such as its hostname or fully-qualified domain name. IPv6 implementation experience has shown that direct queries for a hostname are useful, and a direct query mechanism for other information has been found useful in serverless environments and for debugging. This memo defines an Experimental Protocol for the Internet community.
RFC4619 - Encapsulation Methods for Transport of Frame Relay over Multiprotocol Label Switching (MPLS) Networks
A frame relay pseudowire is a mechanism that exists between a provider's edge network nodes and that supports as faithfully as possible frame relay services over an MPLS packet switched network (PSN). This document describes the detailed encapsulation necessary to transport frame relay packets over an MPLS network. [STANDARDS-TRACK]
RFC4618 - Encapsulation Methods for Transport of PPP/High-Level Data Link Control (HDLC) over MPLS Networks
A pseudowire (PW) can be used to carry Point to Point Protocol (PPP) or High-Level Data Link Control (HDLC) Protocol Data Units over a Multiprotocol Label Switching (MPLS) network without terminating the PPP/HDLC protocol. This enables service providers to offer "emulated" HDLC, or PPP link services over existing MPLS networks. This document specifies the encapsulation of PPP/HDLC Packet Data Units (PDUs) within a pseudowire. [STANDARDS-TRACK]
RFC4617 - A Uniform Resource Name (URN) Formal Namespace for the Latvian National Government Integration Project
This document describes a Uniform Resource Name (URN) namespace that is engineered by a consortium (general contractor, Olimps LTD, and subcontractors, ABC software LTD, Microsoft Latvia LTD, Riga Internet eXchange (RIX) Technologies LTD, and Microlink LTD) for naming information resources published and produced by the Latvian National Government Integration Project (Latvian abbreviation IVIS). This memo provides information for the Internet community.
RFC4616 - The PLAIN Simple Authentication and Security Layer (SASL) Mechanism
This document defines a simple clear-text user/password Simple Authentication and Security Layer (SASL) mechanism called the PLAIN mechanism. The PLAIN mechanism is intended to be used, in combination with data confidentiality services provided by a lower layer, in protocols that lack a simple password authentication command. [STANDARDS-TRACK]
RFC4615 - The Advanced Encryption Standard-Cipher-based Message Authentication Code-Pseudo-Random Function-128 (AES-CMAC-PRF-128) Algorithm for the Internet Key Exchange Protocol (IKE)
Some implementations of IP Security (IPsec) may want to use a pseudo-random function (PRF) based on the Advanced Encryption Standard (AES). This memo describes such an algorithm, called AES-CMAC-PRF-128. It supports fixed and variable key sizes. [STANDARDS-TRACK]
RFC4614 - A Roadmap for Transmission Control Protocol (TCP) Specification Documents
This document contains a "roadmap" to the Requests for Comments (RFC) documents relating to the Internet's Transmission Control Protocol (TCP). This roadmap provides a brief summary of the documents defining TCP and various TCP extensions that have accumulated in the RFC series. This serves as a guide and quick reference for both TCP implementers and other parties who desire information contained in the TCP-related RFCs. This memo provides information for the Internet community.
RFC4613 - Media Type Registrations for Downloadable Sounds for Musical Instrument Digital Interface (MIDI)
This document serves to register a media type for Downloadable Sounds. This memo provides information for the Internet community.
RFC4612 - Real-Time Facsimile (T.38) - audio/t38 MIME Sub-type Registration
This document defines the MIME sub-type audio/t38. The usage of this MIME type, which is intended for use within Session Description Protocol (SDP), is specified within ITU-T Recommendation T.38. This memo defines a Historic Document for the Internet community.
RFC4611 - Multicast Source Discovery Protocol (MSDP) Deployment Scenarios
This document describes best current practices for intra-domain and inter-domain deployment of the Multicast Source Discovery Protocol (MSDP) in conjunction with Protocol Independent Multicast Sparse Mode (PIM-SM). This document specifies an Internet Best Current Practices for the Internet Community, and requests discussion and suggestions for improvements.
RFC4610 - Anycast-RP Using Protocol Independent Multicast (PIM)
This specification allows Anycast-RP (Rendezvous Point) to be used inside a domain that runs Protocol Independent Multicast (PIM) only. Other multicast protocols (such as Multicast Source Discovery Protocol (MSDP), which has been used traditionally to solve this problem) are not required to support Anycast-RP. [STANDARDS-TRACK]
RFC4609 - Protocol Independent Multicast - Sparse Mode (PIM-SM) Multicast Routing Security Issues and Enhancements
This memo describes security threats for the larger (intra-domain or inter-domain) multicast routing infrastructures. Only Protocol Independent Multicast - Sparse Mode (PIM-SM) is analyzed, in its three main operational modes: the traditional Any-Source Multicast (ASM) model, the source-specific multicast (SSM) model, and the ASM model enhanced by the Embedded Rendezvous Point (Embedded-RP) group-to-RP mapping mechanism. This memo also describes enhancements to the protocol operations that mitigate the identified threats. This memo provides information for the Internet community.
RFC4608 - Source-Specific Protocol Independent Multicast in 232/8
IP Multicast group addresses in the 232/8 (232.0.0.0 to 232.255.255.255) range are designated as source-specific multicast destination addresses and are reserved for use by source-specific multicast applications and protocols. This document defines operational recommendations to ensure source-specific behavior within the 232/8 range. This document specifies an Internet Best Current Practices for the Internet Community, and requests discussion and suggestions for improvements.
RFC4607 - Source-Specific Multicast for IP
IP version 4 (IPv4) addresses in the 232/8 (232.0.0.0 to 232.255.255.255) range are designated as source-specific multicast (SSM) destination addresses and are reserved for use by source-specific applications and protocols. For IP version 6 (IPv6), the address prefix FF3x::/32 is reserved for source-specific multicast use. This document defines an extension to the Internet network service that applies to datagrams sent to SSM addresses and defines the host and router requirements to support this extension. [STANDARDS-TRACK]
RFC4606 - Generalized Multi-Protocol Label Switching (GMPLS) Extensions for Synchronous Optical Network (SONET) and Synchronous Digital Hierarchy (SDH) Control
This document provides minor clarification to RFC 3946.
RFC4605 - Internet Group Management Protocol (IGMP) / Multicast Listener Discovery (MLD)-Based Multicast Forwarding ("IGMP/MLD Proxying")
In certain topologies, it is not necessary to run a multicast routing protocol. It is sufficient for a device to learn and proxy group membership information and simply forward multicast packets based upon that information. This document describes a mechanism for forwarding based solely upon Internet Group Management Protocol (IGMP) or Multicast Listener Discovery (MLD) membership information. [STANDARDS-TRACK]
RFC4604 - Using Internet Group Management Protocol Version 3 (IGMPv3) and Multicast Listener Discovery Protocol Version 2 (MLDv2) for Source-Specific Multicast
The Internet Group Management Protocol Version 3 (IGMPv3) and the Multicast Listener Discovery Protocol Version 2 (MLDv2) are protocols that allow a host to inform its neighboring routers of its desire to receive IPv4 and IPv6 multicast transmissions, respectively. Source-specific multicast (SSM) is a form of multicast in which a receiver is required to specify both the network-layer address of the source and the multicast destination address in order to receive the multicast transmission. This document defines the notion of an "SSM-aware" router and host, and clarifies and (in some cases) modifies the behavior of IGMPv3 and MLDv2 on SSM-aware routers and hosts to accommodate source-specific multicast. This document updates the IGMPv3 and MLDv2 specifications. [STANDARDS-TRACK]
RFC4603 - Additional Values for the NAS-Port-Type Attribute
This document defines a set of values for the NAS-Port-Type RADIUS Attribute. This memo provides information for the Internet community.
RFC4602 - Protocol Independent Multicast - Sparse Mode (PIM-SM) IETF Proposed Standard Requirements Analysis
This document provides supporting documentation to advance the Protocol Independent Multicast - Sparse Mode (PIM-SM) routing protocol from IETF Experimental status to Proposed Standard. This memo provides information for the Internet community.
RFC4601 - Protocol Independent Multicast - Sparse Mode (PIM-SM): Protocol Specification (Revised)
This document specifies Protocol Independent Multicast - Sparse Mode (PIM-SM). PIM-SM is a multicast routing protocol that can use the underlying unicast routing information base or a separate multicast-capable routing information base. It builds unidirectional shared trees rooted at a Rendezvous Point (RP) per group, and optionally creates shortest-path trees per source.
RFC4598 - Real-time Transport Protocol (RTP) Payload Format for Enhanced AC-3 (E-AC-3) Audio
This document describes a Real-time Transport Protocol (RTP) payload format for transporting Enhanced AC-3 (E-AC-3) encoded audio data. E-AC-3 is a high-quality, multichannel audio coding format and is an extension of the AC-3 audio coding format, which is used in US High-Definition Television (HDTV), DVD, cable and satellite television, and other media. E-AC-3 is an optional audio format in US and world wide digital television and high-definition DVD formats. The RTP payload format as presented in this document includes support for data fragmentation. [STANDARDS-TRACK]
RFC4597 - Conferencing Scenarios
This document describes multimedia conferencing scenarios. It describes both basic and advanced conferencing scenarios involving voice, video, text, and interactive text sessions. These scenarios will help with the definition and evaluation of the protocols being developed in the centralized conferencing XCON working group. This memo provides information for the Internet community.
RFC4596 - Guidelines for Usage of the Session Initiation Protocol (SIP) Caller Preferences Extension
This document contains guidelines for usage of the Caller Preferences Extension to the Session Initiation Protocol (SIP). It demonstrates the benefits of caller preferences with specific example applications, provides use cases to show proper operation, provides guidance on the applicability of the registered feature tags, and describes a straightforward implementation of the preference and capability matching algorithm specified in Section 7.2 of RFC 3841. This memo provides information for the Internet community.
RFC4595 - Use of IKEv2 in the Fibre Channel Security Association Management Protocol
This document describes the use of IKEv2 to negotiate security protocols and transforms for Fibre Channel as part of the Fibre Channel Security Association Management Protocol. This usage requires that IKEv2 be extended with Fibre-Channel-specific security protocols, transforms, and name types. This document specifies these IKEv2 extensions and allocates identifiers for them. Using new IKEv2 identifiers for Fibre Channel security protocols avoids any possible confusion between IKEv2 negotiation for IP networks and IKEv2 negotiation for Fibre Channel. This memo provides information for the Internet community.
RFC4594 - Configuration Guidelines for DiffServ Service Classes
This document describes service classes configured with Diffserv and recommends how they can be used and how to construct them using Differentiated Services Code Points (DSCPs), traffic conditioners, Per-Hop Behaviors (PHBs), and Active Queue Management (AQM) mechanisms. There is no intrinsic requirement that particular DSCPs, traffic conditioners, PHBs, and AQM be used for a certain service class, but as a policy and for interoperability it is useful to apply them consistently. This memo provides information for the Internet community.
RFC4593 - Generic Threats to Routing Protocols
Routing protocols are subject to attacks that can harm individual users or network operations as a whole. This document provides a description and a summary of generic threats that affect routing protocols in general. This work describes threats, including threat sources and capabilities, threat actions, and threat consequences, as well as a breakdown of routing functions that might be attacked separately. This memo provides information for the Internet community.
RFC4592 - The Role of Wildcards in the Domain Name System
This is an update to the wildcard definition of RFC 1034. The interaction with wildcards and CNAME is changed, an error condition is removed, and the words defining some concepts central to wildcards are changed. The overall goal is not to change wildcards, but to refine the definition of RFC 1034. [STANDARDS-TRACK]
RFC4591 - Frame Relay over Layer 2 Tunneling Protocol Version 3 (L2TPv3)
The Layer 2 Tunneling Protocol, Version 3, (L2TPv3) defines a protocol for tunneling a variety of data link protocols over IP networks. This document describes the specifics of how to tunnel Frame Relay over L2TPv3, including frame encapsulation, virtual-circuit creation and deletion, and status change notification. [STANDARDS-TRACK]
RFC4590 - RADIUS Extension for Digest Authentication
This document defines an extension to the Remote Authentication Dial-In User Service (RADIUS) protocol to enable support of Digest Authentication, for use with HTTP-style protocols like the Session Initiation Protocol (SIP) and HTTP. [STANDARDS-TRACK]
RFC4589 - Location Types Registry
This document creates a registry for describing the types of places a human or end system might be found. The registry is then referenced by other protocols that need a common set of location terms as protocol constants. Examples of location terms defined in this document include aircraft, office, and train station. [STANDARDS-TRACK]
RFC4588 - RTP Retransmission Payload Format
RTP retransmission is an effective packet loss recovery technique for real-time applications with relaxed delay bounds. This document describes an RTP payload format for performing retransmissions. Retransmitted RTP packets are sent in a separate stream from the original RTP stream. It is assumed that feedback from receivers to senders is available. In particular, it is assumed that Real-time Transport Control Protocol (RTCP) feedback as defined in the extended RTP profile for RTCP-based feedback (denoted RTP/AVPF) is available in this memo. [STANDARDS-TRACK]
RFC4587 - RTP Payload Format for H.261 Video Streams
This memo describes a scheme to packetize an H.261 video stream for transport using the Real-time Transport Protocol, RTP, with any of the underlying protocols that carry RTP.